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212380e3 | 1 | /* |
b37021a4 | 2 | * charybdis: an advanced ircd. |
212380e3 | 3 | * client.c: Controls clients. |
4 | * | |
5 | * Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center | |
6 | * Copyright (C) 1996-2002 Hybrid Development Team | |
7 | * Copyright (C) 2002-2005 ircd-ratbox development team | |
b37021a4 | 8 | * Copyright (C) 2007 William Pitcock |
212380e3 | 9 | * |
10 | * This program is free software; you can redistribute it and/or modify | |
11 | * it under the terms of the GNU General Public License as published by | |
12 | * the Free Software Foundation; either version 2 of the License, or | |
13 | * (at your option) any later version. | |
14 | * | |
15 | * This program is distributed in the hope that it will be useful, | |
16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | * GNU General Public License for more details. | |
19 | * | |
20 | * You should have received a copy of the GNU General Public License | |
21 | * along with this program; if not, write to the Free Software | |
22 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 | |
23 | * USA | |
24 | * | |
f80a1823 | 25 | * $Id: client.c 3514 2007-06-06 16:25:21Z nenolod $ |
212380e3 | 26 | */ |
27 | #include "stdinc.h" | |
28 | #include "config.h" | |
29 | ||
212380e3 | 30 | #include "client.h" |
31 | #include "class.h" | |
32 | #include "common.h" | |
212380e3 | 33 | #include "hash.h" |
34 | #include "irc_string.h" | |
35 | #include "sprintf_irc.h" | |
36 | #include "ircd.h" | |
37 | #include "s_gline.h" | |
38 | #include "numeric.h" | |
39 | #include "packet.h" | |
40 | #include "s_auth.h" | |
212380e3 | 41 | #include "s_conf.h" |
42 | #include "s_newconf.h" | |
d3455e2c | 43 | #include "logger.h" |
212380e3 | 44 | #include "s_serv.h" |
45 | #include "s_stats.h" | |
46 | #include "send.h" | |
47 | #include "whowas.h" | |
48 | #include "s_user.h" | |
212380e3 | 49 | #include "hash.h" |
212380e3 | 50 | #include "hostmask.h" |
212380e3 | 51 | #include "listener.h" |
52 | #include "hook.h" | |
53 | #include "msg.h" | |
54 | #include "monitor.h" | |
55 | #include "blacklist.h" | |
54015b5f | 56 | #include "reject.h" |
994544c2 | 57 | #include "scache.h" |
b37021a4 | 58 | #include "irc_dictionary.h" |
212380e3 | 59 | |
60 | #define DEBUG_EXITED_CLIENTS | |
61 | ||
af81d5a0 WP |
62 | static void check_pings_list(rb_dlink_list * list); |
63 | static void check_unknowns_list(rb_dlink_list * list); | |
212380e3 | 64 | static void free_exited_clients(void *unused); |
65 | static void exit_aborted_clients(void *unused); | |
66 | ||
67 | static int exit_remote_client(struct Client *, struct Client *, struct Client *,const char *); | |
68 | static int exit_remote_server(struct Client *, struct Client *, struct Client *,const char *); | |
69 | static int exit_local_client(struct Client *, struct Client *, struct Client *,const char *); | |
70 | static int exit_unknown_client(struct Client *, struct Client *, struct Client *,const char *); | |
71 | static int exit_local_server(struct Client *, struct Client *, struct Client *,const char *); | |
72 | static int qs_server(struct Client *, struct Client *, struct Client *, const char *comment); | |
73 | ||
74 | static EVH check_pings; | |
75 | ||
6e9b4415 VY |
76 | extern rb_bh *client_heap; |
77 | extern rb_bh *lclient_heap; | |
78 | extern rb_bh *pclient_heap; | |
784fdac0 | 79 | static rb_bh *away_heap = NULL; |
212380e3 | 80 | |
81 | extern char current_uid[IDLEN]; | |
82 | ||
43de0f45 WP |
83 | struct Dictionary *nd_dict = NULL; |
84 | ||
212380e3 | 85 | enum |
86 | { | |
87 | D_LINED, | |
88 | K_LINED, | |
89 | G_LINED | |
90 | }; | |
91 | ||
af81d5a0 | 92 | rb_dlink_list dead_list; |
212380e3 | 93 | #ifdef DEBUG_EXITED_CLIENTS |
af81d5a0 | 94 | static rb_dlink_list dead_remote_list; |
212380e3 | 95 | #endif |
96 | ||
97 | struct abort_client | |
98 | { | |
af81d5a0 | 99 | rb_dlink_node node; |
212380e3 | 100 | struct Client *client; |
101 | char notice[REASONLEN]; | |
102 | }; | |
103 | ||
af81d5a0 | 104 | static rb_dlink_list abort_list; |
212380e3 | 105 | |
106 | ||
107 | /* | |
108 | * init_client | |
109 | * | |
110 | * inputs - NONE | |
111 | * output - NONE | |
112 | * side effects - initialize client free memory | |
113 | */ | |
114 | void | |
115 | init_client(void) | |
116 | { | |
117 | /* | |
118 | * start off the check ping event .. -- adrian | |
119 | * Every 30 seconds is plenty -- db | |
120 | */ | |
ae4091d2 | 121 | client_heap = rb_bh_create(sizeof(struct Client), CLIENT_HEAP_SIZE, "client_heap"); |
784fdac0 VY |
122 | lclient_heap = rb_bh_create(sizeof(struct LocalUser), LCLIENT_HEAP_SIZE, "lclient_heap"); |
123 | pclient_heap = rb_bh_create(sizeof(struct PreClient), PCLIENT_HEAP_SIZE, "pclient_heap"); | |
124 | away_heap = rb_bh_create(AWAYLEN, AWAY_HEAP_SIZE, "away_heap"); | |
125 | ||
780087dc JT |
126 | rb_event_addish("check_pings", check_pings, NULL, 30); |
127 | rb_event_addish("free_exited_clients", &free_exited_clients, NULL, 4); | |
128 | rb_event_addish("exit_aborted_clients", exit_aborted_clients, NULL, 1); | |
6227ed01 | 129 | rb_event_add("flood_recalc", flood_recalc, NULL, 1); |
43de0f45 WP |
130 | |
131 | nd_dict = irc_dictionary_create(irccmp); | |
212380e3 | 132 | } |
133 | ||
134 | ||
135 | /* | |
136 | * make_client - create a new Client struct and set it to initial state. | |
137 | * | |
138 | * from == NULL, create local client (a client connected | |
139 | * to a socket). | |
140 | * | |
141 | * from, create remote client (behind a socket | |
142 | * associated with the client defined by | |
143 | * 'from'). ('from' is a local client!!). | |
144 | */ | |
145 | struct Client * | |
146 | make_client(struct Client *from) | |
147 | { | |
148 | struct Client *client_p = NULL; | |
149 | struct LocalUser *localClient; | |
150 | ||
6e9b4415 | 151 | client_p = rb_bh_alloc(client_heap); |
212380e3 | 152 | |
153 | if(from == NULL) | |
154 | { | |
155 | client_p->from = client_p; /* 'from' of local client is self! */ | |
156 | ||
6e9b4415 | 157 | localClient = (struct LocalUser *) rb_bh_alloc(lclient_heap); |
212380e3 | 158 | SetMyConnect(client_p); |
159 | client_p->localClient = localClient; | |
160 | ||
9f6bbe3c | 161 | client_p->localClient->lasttime = client_p->localClient->firsttime = rb_current_time(); |
212380e3 | 162 | |
de057244 | 163 | client_p->localClient->F = NULL; |
83b667df | 164 | client_p->localClient->ctrlF = NULL; |
212380e3 | 165 | |
6e9b4415 | 166 | client_p->preClient = (struct PreClient *) rb_bh_alloc(pclient_heap); |
212380e3 | 167 | |
168 | /* as good a place as any... */ | |
af81d5a0 | 169 | rb_dlinkAdd(client_p, &client_p->localClient->tnode, &unknown_list); |
212380e3 | 170 | } |
171 | else | |
172 | { /* from is not NULL */ | |
173 | client_p->localClient = NULL; | |
174 | client_p->preClient = NULL; | |
175 | client_p->from = from; /* 'from' of local client is self! */ | |
176 | } | |
177 | ||
178 | SetUnknown(client_p); | |
179 | strcpy(client_p->username, "unknown"); | |
180 | ||
181 | return client_p; | |
182 | } | |
183 | ||
184 | void | |
185 | free_pre_client(struct Client *client_p) | |
186 | { | |
187 | struct Blacklist *blptr; | |
188 | ||
189 | s_assert(NULL != client_p); | |
190 | ||
191 | if(client_p->preClient == NULL) | |
192 | return; | |
193 | ||
194 | blptr = client_p->preClient->dnsbl_listed; | |
195 | if (blptr != NULL) | |
196 | unref_blacklist(blptr); | |
197 | abort_blacklist_queries(client_p); | |
6e9b4415 | 198 | rb_bh_free(pclient_heap, client_p->preClient); |
212380e3 | 199 | client_p->preClient = NULL; |
200 | } | |
201 | ||
202 | static void | |
203 | free_local_client(struct Client *client_p) | |
204 | { | |
205 | s_assert(NULL != client_p); | |
206 | s_assert(&me != client_p); | |
207 | ||
208 | if(client_p->localClient == NULL) | |
209 | return; | |
210 | ||
211 | /* | |
212 | * clean up extra sockets from P-lines which have been discarded. | |
213 | */ | |
214 | if(client_p->localClient->listener) | |
215 | { | |
216 | s_assert(0 < client_p->localClient->listener->ref_count); | |
217 | if(0 == --client_p->localClient->listener->ref_count | |
218 | && !client_p->localClient->listener->active) | |
219 | free_listener(client_p->localClient->listener); | |
220 | client_p->localClient->listener = 0; | |
221 | } | |
222 | ||
24350e62 | 223 | if(client_p->localClient->F) |
780087dc | 224 | rb_close(client_p->localClient->F); |
212380e3 | 225 | |
226 | if(client_p->localClient->passwd) | |
227 | { | |
228 | memset(client_p->localClient->passwd, 0, | |
229 | strlen(client_p->localClient->passwd)); | |
90a3c35b | 230 | rb_free(client_p->localClient->passwd); |
212380e3 | 231 | } |
232 | ||
90a3c35b VY |
233 | rb_free(client_p->localClient->challenge); |
234 | rb_free(client_p->localClient->fullcaps); | |
235 | rb_free(client_p->localClient->opername); | |
236 | rb_free(client_p->localClient->mangledhost); | |
212380e3 | 237 | |
6e9b4415 | 238 | rb_bh_free(lclient_heap, client_p->localClient); |
212380e3 | 239 | client_p->localClient = NULL; |
240 | } | |
241 | ||
242 | void | |
243 | free_client(struct Client *client_p) | |
244 | { | |
245 | s_assert(NULL != client_p); | |
246 | s_assert(&me != client_p); | |
247 | free_local_client(client_p); | |
248 | free_pre_client(client_p); | |
6e9b4415 | 249 | rb_bh_free(client_heap, client_p); |
212380e3 | 250 | } |
251 | ||
252 | /* | |
253 | * check_pings - go through the local client list and check activity | |
254 | * kill off stuff that should die | |
255 | * | |
256 | * inputs - NOT USED (from event) | |
257 | * output - next time_t when check_pings() should be called again | |
258 | * side effects - | |
259 | * | |
260 | * | |
261 | * A PING can be sent to clients as necessary. | |
262 | * | |
263 | * Client/Server ping outs are handled. | |
264 | */ | |
265 | ||
266 | /* | |
267 | * Addon from adrian. We used to call this after nextping seconds, | |
268 | * however I've changed it to run once a second. This is only for | |
269 | * PING timeouts, not K/etc-line checks (thanks dianora!). Having it | |
270 | * run once a second makes life a lot easier - when a new client connects | |
271 | * and they need a ping in 4 seconds, if nextping was set to 20 seconds | |
272 | * we end up waiting 20 seconds. This is stupid. :-) | |
273 | * I will optimise (hah!) check_pings() once I've finished working on | |
274 | * tidying up other network IO evilnesses. | |
275 | * -- adrian | |
276 | */ | |
277 | ||
278 | static void | |
279 | check_pings(void *notused) | |
280 | { | |
281 | check_pings_list(&lclient_list); | |
282 | check_pings_list(&serv_list); | |
283 | check_unknowns_list(&unknown_list); | |
284 | } | |
285 | ||
286 | /* | |
287 | * Check_pings_list() | |
288 | * | |
289 | * inputs - pointer to list to check | |
290 | * output - NONE | |
291 | * side effects - | |
292 | */ | |
293 | static void | |
af81d5a0 | 294 | check_pings_list(rb_dlink_list * list) |
212380e3 | 295 | { |
296 | char scratch[32]; /* way too generous but... */ | |
297 | struct Client *client_p; /* current local client_p being examined */ | |
298 | int ping = 0; /* ping time value from client */ | |
90a3c35b | 299 | rb_dlink_node *ptr, *next_ptr; |
212380e3 | 300 | |
90a3c35b | 301 | RB_DLINK_FOREACH_SAFE(ptr, next_ptr, list->head) |
212380e3 | 302 | { |
303 | client_p = ptr->data; | |
304 | ||
212380e3 | 305 | if(!MyConnect(client_p) || IsDead(client_p)) |
306 | continue; | |
307 | ||
e883cf07 | 308 | ping = get_client_ping(client_p); |
212380e3 | 309 | |
9f6bbe3c | 310 | if(ping < (rb_current_time() - client_p->localClient->lasttime)) |
212380e3 | 311 | { |
312 | /* | |
313 | * If the client/server hasnt talked to us in 2*ping seconds | |
314 | * and it has a ping time, then close its connection. | |
315 | */ | |
9f6bbe3c | 316 | if(((rb_current_time() - client_p->localClient->lasttime) >= (2 * ping) |
212380e3 | 317 | && (client_p->flags & FLAGS_PINGSENT))) |
318 | { | |
e883cf07 | 319 | if(IsServer(client_p)) |
212380e3 | 320 | { |
e883cf07 | 321 | sendto_realops_snomask(SNO_GENERAL, L_ALL, |
212380e3 | 322 | "No response from %s, closing link", |
323 | get_server_name(client_p, HIDE_IP)); | |
324 | ilog(L_SERVER, | |
325 | "No response from %s, closing link", | |
326 | log_client_name(client_p, HIDE_IP)); | |
327 | } | |
38e6acdd | 328 | (void) rb_snprintf(scratch, sizeof(scratch), |
212380e3 | 329 | "Ping timeout: %d seconds", |
9f6bbe3c | 330 | (int) (rb_current_time() - client_p->localClient->lasttime)); |
212380e3 | 331 | |
332 | exit_client(client_p, client_p, &me, scratch); | |
333 | continue; | |
334 | } | |
335 | else if((client_p->flags & FLAGS_PINGSENT) == 0) | |
336 | { | |
337 | /* | |
338 | * if we havent PINGed the connection and we havent | |
339 | * heard from it in a while, PING it to make sure | |
340 | * it is still alive. | |
341 | */ | |
342 | client_p->flags |= FLAGS_PINGSENT; | |
343 | /* not nice but does the job */ | |
9f6bbe3c | 344 | client_p->localClient->lasttime = rb_current_time() - ping; |
212380e3 | 345 | sendto_one(client_p, "PING :%s", me.name); |
346 | } | |
347 | } | |
348 | /* ping_timeout: */ | |
349 | ||
350 | } | |
351 | } | |
352 | ||
353 | /* | |
354 | * check_unknowns_list | |
355 | * | |
356 | * inputs - pointer to list of unknown clients | |
357 | * output - NONE | |
358 | * side effects - unknown clients get marked for termination after n seconds | |
359 | */ | |
360 | static void | |
af81d5a0 | 361 | check_unknowns_list(rb_dlink_list * list) |
212380e3 | 362 | { |
90a3c35b | 363 | rb_dlink_node *ptr, *next_ptr; |
212380e3 | 364 | struct Client *client_p; |
16d59a0d | 365 | int timeout; |
212380e3 | 366 | |
90a3c35b | 367 | RB_DLINK_FOREACH_SAFE(ptr, next_ptr, list->head) |
212380e3 | 368 | { |
369 | client_p = ptr->data; | |
370 | ||
371 | if(IsDead(client_p) || IsClosing(client_p)) | |
372 | continue; | |
373 | ||
374 | /* | |
375 | * Check UNKNOWN connections - if they have been in this state | |
376 | * for > 30s, close them. | |
377 | */ | |
378 | ||
16d59a0d | 379 | timeout = IsAnyServer(client_p) ? ConfigFileEntry.connect_timeout : 30; |
9f6bbe3c | 380 | if((rb_current_time() - client_p->localClient->firsttime) > timeout) |
16d59a0d JT |
381 | { |
382 | if(IsAnyServer(client_p)) | |
383 | { | |
384 | sendto_realops_snomask(SNO_GENERAL, is_remote_connect(client_p) ? L_NETWIDE : L_ALL, | |
385 | "No response from %s, closing link", | |
386 | get_server_name(client_p, HIDE_IP)); | |
387 | ilog(L_SERVER, | |
388 | "No response from %s, closing link", | |
389 | log_client_name(client_p, HIDE_IP)); | |
390 | } | |
212380e3 | 391 | exit_client(client_p, client_p, &me, "Connection timed out"); |
16d59a0d | 392 | } |
212380e3 | 393 | } |
394 | } | |
395 | ||
396 | static void | |
397 | notify_banned_client(struct Client *client_p, struct ConfItem *aconf, int ban) | |
398 | { | |
399 | static const char conn_closed[] = "Connection closed"; | |
400 | static const char d_lined[] = "D-lined"; | |
401 | static const char k_lined[] = "K-lined"; | |
402 | static const char g_lined[] = "G-lined"; | |
403 | const char *reason = NULL; | |
404 | const char *exit_reason = conn_closed; | |
405 | ||
406 | if(ConfigFileEntry.kline_with_reason && !EmptyString(aconf->passwd)) | |
407 | { | |
408 | reason = aconf->passwd; | |
409 | exit_reason = aconf->passwd; | |
410 | } | |
411 | else | |
412 | { | |
413 | switch (aconf->status) | |
414 | { | |
415 | case D_LINED: | |
416 | reason = d_lined; | |
417 | break; | |
418 | case G_LINED: | |
419 | reason = g_lined; | |
420 | break; | |
421 | default: | |
422 | reason = k_lined; | |
423 | break; | |
424 | } | |
425 | } | |
426 | ||
427 | if(ban == D_LINED && !IsPerson(client_p)) | |
428 | sendto_one(client_p, "NOTICE DLINE :*** You have been D-lined"); | |
429 | else | |
430 | sendto_one(client_p, form_str(ERR_YOUREBANNEDCREEP), | |
431 | me.name, client_p->name, reason); | |
432 | ||
433 | exit_client(client_p, client_p, &me, | |
434 | EmptyString(ConfigFileEntry.kline_reason) ? exit_reason : | |
435 | ConfigFileEntry.kline_reason); | |
436 | } | |
437 | ||
438 | /* | |
439 | * check_banned_lines | |
440 | * inputs - NONE | |
441 | * output - NONE | |
442 | * side effects - Check all connections for a pending k/d/gline against the | |
443 | * client, exit the client if found. | |
444 | */ | |
445 | void | |
446 | check_banned_lines(void) | |
447 | { | |
448 | struct Client *client_p; /* current local client_p being examined */ | |
449 | struct ConfItem *aconf = NULL; | |
90a3c35b | 450 | rb_dlink_node *ptr, *next_ptr; |
212380e3 | 451 | |
90a3c35b | 452 | RB_DLINK_FOREACH_SAFE(ptr, next_ptr, lclient_list.head) |
212380e3 | 453 | { |
454 | client_p = ptr->data; | |
455 | ||
456 | if(IsMe(client_p)) | |
457 | continue; | |
458 | ||
459 | /* if there is a returned struct ConfItem then kill it */ | |
21c9d815 | 460 | if((aconf = find_dline((struct sockaddr *)&client_p->localClient->ip, client_p->localClient->ip.ss_family))) |
212380e3 | 461 | { |
462 | if(aconf->status & CONF_EXEMPTDLINE) | |
463 | continue; | |
464 | ||
465 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
466 | "DLINE active for %s", | |
467 | get_client_name(client_p, HIDE_IP)); | |
468 | ||
469 | notify_banned_client(client_p, aconf, D_LINED); | |
470 | continue; /* and go examine next fd/client_p */ | |
471 | } | |
472 | ||
473 | if(!IsPerson(client_p)) | |
474 | continue; | |
475 | ||
476 | if((aconf = find_kline(client_p)) != NULL) | |
477 | { | |
478 | if(IsExemptKline(client_p)) | |
479 | { | |
480 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
481 | "KLINE over-ruled for %s, client is kline_exempt [%s@%s]", | |
482 | get_client_name(client_p, HIDE_IP), | |
483 | aconf->user, aconf->host); | |
484 | continue; | |
485 | } | |
486 | ||
487 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
488 | "KLINE active for %s", | |
489 | get_client_name(client_p, HIDE_IP)); | |
490 | notify_banned_client(client_p, aconf, K_LINED); | |
491 | continue; | |
492 | } | |
493 | else if((aconf = find_gline(client_p)) != NULL) | |
494 | { | |
495 | if(IsExemptKline(client_p)) | |
496 | { | |
497 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
498 | "GLINE over-ruled for %s, client is kline_exempt [%s@%s]", | |
499 | get_client_name(client_p, HIDE_IP), | |
500 | aconf->user, aconf->host); | |
501 | continue; | |
502 | } | |
503 | ||
504 | if(IsExemptGline(client_p)) | |
505 | { | |
506 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
507 | "GLINE over-ruled for %s, client is gline_exempt [%s@%s]", | |
508 | get_client_name(client_p, HIDE_IP), | |
509 | aconf->user, aconf->host); | |
510 | continue; | |
511 | } | |
512 | ||
513 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
514 | "GLINE active for %s", | |
515 | get_client_name(client_p, HIDE_IP)); | |
516 | ||
517 | notify_banned_client(client_p, aconf, G_LINED); | |
518 | continue; | |
519 | } | |
520 | else if((aconf = find_xline(client_p->info, 1)) != NULL) | |
521 | { | |
522 | if(IsExemptKline(client_p)) | |
523 | { | |
524 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
525 | "XLINE over-ruled for %s, client is kline_exempt [%s]", | |
526 | get_client_name(client_p, HIDE_IP), | |
527 | aconf->name); | |
528 | continue; | |
529 | } | |
530 | ||
531 | sendto_realops_snomask(SNO_GENERAL, L_ALL, "XLINE active for %s", | |
532 | get_client_name(client_p, HIDE_IP)); | |
533 | ||
534 | (void) exit_client(client_p, client_p, &me, "Bad user info"); | |
535 | continue; | |
536 | } | |
537 | } | |
538 | ||
539 | /* also check the unknowns list for new dlines */ | |
90a3c35b | 540 | RB_DLINK_FOREACH_SAFE(ptr, next_ptr, unknown_list.head) |
212380e3 | 541 | { |
542 | client_p = ptr->data; | |
543 | ||
21c9d815 | 544 | if((aconf = find_dline((struct sockaddr *)&client_p->localClient->ip,client_p->localClient->ip.ss_family))) |
212380e3 | 545 | { |
546 | if(aconf->status & CONF_EXEMPTDLINE) | |
547 | continue; | |
548 | ||
549 | notify_banned_client(client_p, aconf, D_LINED); | |
550 | } | |
551 | } | |
552 | ||
553 | } | |
554 | ||
555 | /* check_klines_event() | |
556 | * | |
557 | * inputs - | |
558 | * outputs - | |
559 | * side effects - check_klines() is called, kline_queued unset | |
560 | */ | |
561 | void | |
562 | check_klines_event(void *unused) | |
563 | { | |
564 | kline_queued = 0; | |
565 | check_klines(); | |
566 | } | |
567 | ||
568 | /* check_klines | |
569 | * | |
570 | * inputs - | |
571 | * outputs - | |
572 | * side effects - all clients will be checked for klines | |
573 | */ | |
574 | void | |
575 | check_klines(void) | |
576 | { | |
577 | struct Client *client_p; | |
578 | struct ConfItem *aconf; | |
af81d5a0 | 579 | rb_dlink_node *ptr; |
90a3c35b | 580 | rb_dlink_node *next_ptr; |
212380e3 | 581 | |
90a3c35b | 582 | RB_DLINK_FOREACH_SAFE(ptr, next_ptr, lclient_list.head) |
212380e3 | 583 | { |
584 | client_p = ptr->data; | |
585 | ||
586 | if(IsMe(client_p) || !IsPerson(client_p)) | |
587 | continue; | |
588 | ||
589 | if((aconf = find_kline(client_p)) != NULL) | |
590 | { | |
591 | if(IsExemptKline(client_p)) | |
592 | { | |
593 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
594 | "KLINE over-ruled for %s, client is kline_exempt", | |
595 | get_client_name(client_p, HIDE_IP)); | |
596 | continue; | |
597 | } | |
598 | ||
599 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
600 | "KLINE active for %s", | |
601 | get_client_name(client_p, HIDE_IP)); | |
602 | ||
603 | notify_banned_client(client_p, aconf, K_LINED); | |
604 | continue; | |
605 | } | |
606 | } | |
607 | } | |
608 | ||
609 | /* check_glines() | |
610 | * | |
611 | * inputs - | |
612 | * outputs - | |
613 | * side effects - all clients will be checked for glines | |
614 | */ | |
615 | void | |
616 | check_glines(void) | |
617 | { | |
618 | struct Client *client_p; | |
619 | struct ConfItem *aconf; | |
af81d5a0 | 620 | rb_dlink_node *ptr; |
90a3c35b | 621 | rb_dlink_node *next_ptr; |
212380e3 | 622 | |
90a3c35b | 623 | RB_DLINK_FOREACH_SAFE(ptr, next_ptr, lclient_list.head) |
212380e3 | 624 | { |
625 | client_p = ptr->data; | |
626 | ||
627 | if(IsMe(client_p) || !IsPerson(client_p)) | |
628 | continue; | |
629 | ||
630 | if((aconf = find_gline(client_p)) != NULL) | |
631 | { | |
632 | if(IsExemptKline(client_p)) | |
633 | { | |
634 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
635 | "GLINE over-ruled for %s, client is kline_exempt", | |
636 | get_client_name(client_p, HIDE_IP)); | |
637 | continue; | |
638 | } | |
639 | ||
640 | if(IsExemptGline(client_p)) | |
641 | { | |
642 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
643 | "GLINE over-ruled for %s, client is gline_exempt", | |
644 | get_client_name(client_p, HIDE_IP)); | |
645 | continue; | |
646 | } | |
647 | ||
648 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
649 | "GLINE active for %s", | |
650 | get_client_name(client_p, HIDE_IP)); | |
651 | ||
652 | notify_banned_client(client_p, aconf, K_LINED); | |
653 | continue; | |
654 | } | |
655 | } | |
656 | } | |
657 | ||
658 | /* check_dlines() | |
659 | * | |
660 | * inputs - | |
661 | * outputs - | |
662 | * side effects - all clients will be checked for dlines | |
663 | */ | |
664 | void | |
665 | check_dlines(void) | |
666 | { | |
667 | struct Client *client_p; | |
668 | struct ConfItem *aconf; | |
af81d5a0 | 669 | rb_dlink_node *ptr; |
90a3c35b | 670 | rb_dlink_node *next_ptr; |
212380e3 | 671 | |
90a3c35b | 672 | RB_DLINK_FOREACH_SAFE(ptr, next_ptr, lclient_list.head) |
212380e3 | 673 | { |
674 | client_p = ptr->data; | |
675 | ||
676 | if(IsMe(client_p)) | |
677 | continue; | |
678 | ||
21c9d815 | 679 | if((aconf = find_dline((struct sockaddr *)&client_p->localClient->ip,client_p->localClient->ip.ss_family)) != NULL) |
212380e3 | 680 | { |
681 | if(aconf->status & CONF_EXEMPTDLINE) | |
682 | continue; | |
683 | ||
684 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
685 | "DLINE active for %s", | |
686 | get_client_name(client_p, HIDE_IP)); | |
687 | ||
688 | notify_banned_client(client_p, aconf, D_LINED); | |
689 | continue; | |
690 | } | |
691 | } | |
692 | ||
693 | /* dlines need to be checked against unknowns too */ | |
90a3c35b | 694 | RB_DLINK_FOREACH_SAFE(ptr, next_ptr, unknown_list.head) |
212380e3 | 695 | { |
696 | client_p = ptr->data; | |
697 | ||
21c9d815 | 698 | if((aconf = find_dline((struct sockaddr *)&client_p->localClient->ip,client_p->localClient->ip.ss_family)) != NULL) |
212380e3 | 699 | { |
700 | if(aconf->status & CONF_EXEMPTDLINE) | |
701 | continue; | |
702 | ||
703 | notify_banned_client(client_p, aconf, D_LINED); | |
704 | } | |
705 | } | |
706 | } | |
707 | ||
708 | /* check_xlines | |
709 | * | |
710 | * inputs - | |
711 | * outputs - | |
712 | * side effects - all clients will be checked for xlines | |
713 | */ | |
714 | void | |
715 | check_xlines(void) | |
716 | { | |
717 | struct Client *client_p; | |
718 | struct ConfItem *aconf; | |
af81d5a0 | 719 | rb_dlink_node *ptr; |
90a3c35b | 720 | rb_dlink_node *next_ptr; |
212380e3 | 721 | |
90a3c35b | 722 | RB_DLINK_FOREACH_SAFE(ptr, next_ptr, lclient_list.head) |
212380e3 | 723 | { |
724 | client_p = ptr->data; | |
725 | ||
726 | if(IsMe(client_p) || !IsPerson(client_p)) | |
727 | continue; | |
728 | ||
729 | if((aconf = find_xline(client_p->info, 1)) != NULL) | |
730 | { | |
731 | if(IsExemptKline(client_p)) | |
732 | { | |
733 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
734 | "XLINE over-ruled for %s, client is kline_exempt", | |
735 | get_client_name(client_p, HIDE_IP)); | |
736 | continue; | |
737 | } | |
738 | ||
739 | sendto_realops_snomask(SNO_GENERAL, L_ALL, "XLINE active for %s", | |
740 | get_client_name(client_p, HIDE_IP)); | |
741 | ||
742 | (void) exit_client(client_p, client_p, &me, "Bad user info"); | |
743 | continue; | |
744 | } | |
745 | } | |
746 | } | |
747 | ||
748 | /* | |
749 | * update_client_exit_stats | |
750 | * | |
751 | * input - pointer to client | |
752 | * output - NONE | |
753 | * side effects - | |
754 | */ | |
755 | static void | |
756 | update_client_exit_stats(struct Client *client_p) | |
757 | { | |
758 | if(IsServer(client_p)) | |
759 | { | |
760 | sendto_realops_snomask(SNO_EXTERNAL, L_ALL, | |
761 | "Server %s split from %s", | |
762 | client_p->name, client_p->servptr->name); | |
763 | if(HasSentEob(client_p)) | |
764 | eob_count--; | |
765 | } | |
766 | else if(IsClient(client_p)) | |
767 | { | |
768 | --Count.total; | |
769 | if(IsOper(client_p)) | |
770 | --Count.oper; | |
771 | if(IsInvisible(client_p)) | |
772 | --Count.invisi; | |
773 | } | |
774 | ||
775 | if(splitchecking && !splitmode) | |
776 | check_splitmode(NULL); | |
777 | } | |
778 | ||
779 | /* | |
780 | * release_client_state | |
781 | * | |
782 | * input - pointer to client to release | |
783 | * output - NONE | |
784 | * side effects - | |
785 | */ | |
786 | static void | |
787 | release_client_state(struct Client *client_p) | |
788 | { | |
789 | if(client_p->user != NULL) | |
790 | { | |
791 | free_user(client_p->user, client_p); /* try this here */ | |
792 | } | |
793 | if(client_p->serv) | |
794 | { | |
795 | if(client_p->serv->user != NULL) | |
796 | free_user(client_p->serv->user, client_p); | |
797 | if(client_p->serv->fullcaps) | |
90a3c35b VY |
798 | rb_free(client_p->serv->fullcaps); |
799 | rb_free(client_p->serv); | |
212380e3 | 800 | } |
801 | } | |
802 | ||
803 | /* | |
804 | * remove_client_from_list | |
805 | * inputs - point to client to remove | |
806 | * output - NONE | |
807 | * side effects - taken the code from ExitOneClient() for this | |
808 | * and placed it here. - avalon | |
809 | */ | |
810 | static void | |
811 | remove_client_from_list(struct Client *client_p) | |
812 | { | |
813 | s_assert(NULL != client_p); | |
814 | ||
815 | if(client_p == NULL) | |
816 | return; | |
817 | ||
818 | /* A client made with make_client() | |
819 | * is on the unknown_list until removed. | |
820 | * If it =does= happen to exit before its removed from that list | |
821 | * and its =not= on the global_client_list, it will core here. | |
822 | * short circuit that case now -db | |
823 | */ | |
824 | if(client_p->node.prev == NULL && client_p->node.next == NULL) | |
825 | return; | |
826 | ||
af81d5a0 | 827 | rb_dlinkDelete(&client_p->node, &global_client_list); |
212380e3 | 828 | |
829 | update_client_exit_stats(client_p); | |
830 | } | |
831 | ||
832 | ||
833 | /* | |
834 | * find_person - find person by (nick)name. | |
835 | * inputs - pointer to name | |
836 | * output - return client pointer | |
837 | * side effects - | |
838 | */ | |
839 | struct Client * | |
840 | find_person(const char *name) | |
841 | { | |
842 | struct Client *c2ptr; | |
843 | ||
844 | c2ptr = find_client(name); | |
845 | ||
846 | if(c2ptr && IsPerson(c2ptr)) | |
847 | return (c2ptr); | |
848 | return (NULL); | |
849 | } | |
850 | ||
851 | struct Client * | |
852 | find_named_person(const char *name) | |
853 | { | |
854 | struct Client *c2ptr; | |
855 | ||
856 | c2ptr = find_named_client(name); | |
857 | ||
858 | if(c2ptr && IsPerson(c2ptr)) | |
859 | return (c2ptr); | |
860 | return (NULL); | |
861 | } | |
862 | ||
863 | ||
864 | /* | |
865 | * find_chasing - find the client structure for a nick name (user) | |
866 | * using history mechanism if necessary. If the client is not found, | |
867 | * an error message (NO SUCH NICK) is generated. If the client was found | |
868 | * through the history, chasing will be 1 and otherwise 0. | |
869 | */ | |
870 | struct Client * | |
871 | find_chasing(struct Client *source_p, const char *user, int *chasing) | |
872 | { | |
873 | struct Client *who; | |
874 | ||
875 | if(MyClient(source_p)) | |
876 | who = find_named_person(user); | |
877 | else | |
878 | who = find_person(user); | |
879 | ||
880 | if(chasing) | |
881 | *chasing = 0; | |
882 | ||
883 | if(who || IsDigit(*user)) | |
884 | return who; | |
885 | ||
886 | if(!(who = get_history(user, (long) KILLCHASETIMELIMIT))) | |
887 | { | |
888 | sendto_one_numeric(source_p, ERR_NOSUCHNICK, | |
889 | form_str(ERR_NOSUCHNICK), user); | |
890 | return (NULL); | |
891 | } | |
892 | if(chasing) | |
893 | *chasing = 1; | |
894 | return who; | |
895 | } | |
896 | ||
897 | /* | |
898 | * get_client_name - Return the name of the client | |
899 | * for various tracking and | |
900 | * admin purposes. The main purpose of this function is to | |
901 | * return the "socket host" name of the client, if that | |
902 | * differs from the advertised name (other than case). | |
903 | * But, this can be used to any client structure. | |
904 | * | |
905 | * NOTE 1: | |
906 | * Watch out the allocation of "nbuf", if either source_p->name | |
907 | * or source_p->sockhost gets changed into pointers instead of | |
908 | * directly allocated within the structure... | |
909 | * | |
910 | * NOTE 2: | |
911 | * Function return either a pointer to the structure (source_p) or | |
912 | * to internal buffer (nbuf). *NEVER* use the returned pointer | |
913 | * to modify what it points!!! | |
914 | */ | |
915 | ||
916 | const char * | |
917 | get_client_name(struct Client *client, int showip) | |
918 | { | |
919 | static char nbuf[HOSTLEN * 2 + USERLEN + 5]; | |
920 | ||
921 | s_assert(NULL != client); | |
922 | if(client == NULL) | |
923 | return NULL; | |
924 | ||
925 | if(MyConnect(client)) | |
926 | { | |
927 | if(!irccmp(client->name, client->host)) | |
928 | return client->name; | |
929 | ||
930 | if(ConfigFileEntry.hide_spoof_ips && | |
931 | showip == SHOW_IP && IsIPSpoof(client)) | |
932 | showip = MASK_IP; | |
933 | #ifdef HIDE_SERVERS_IPS | |
934 | if(IsAnyServer(client)) | |
935 | showip = MASK_IP; | |
936 | #endif | |
937 | ||
938 | /* And finally, let's get the host information, ip or name */ | |
939 | switch (showip) | |
940 | { | |
941 | case SHOW_IP: | |
38e6acdd | 942 | rb_snprintf(nbuf, sizeof(nbuf), "%s[%s@%s]", |
212380e3 | 943 | client->name, client->username, |
944 | client->sockhost); | |
945 | break; | |
946 | case MASK_IP: | |
38e6acdd | 947 | rb_snprintf(nbuf, sizeof(nbuf), "%s[%s@255.255.255.255]", |
212380e3 | 948 | client->name, client->username); |
949 | break; | |
950 | default: | |
38e6acdd | 951 | rb_snprintf(nbuf, sizeof(nbuf), "%s[%s@%s]", |
212380e3 | 952 | client->name, client->username, client->host); |
953 | } | |
954 | return nbuf; | |
955 | } | |
956 | ||
957 | /* As pointed out by Adel Mezibra | |
958 | * Neph|l|m@EFnet. Was missing a return here. | |
959 | */ | |
960 | return client->name; | |
961 | } | |
962 | ||
963 | const char * | |
964 | get_server_name(struct Client *target_p, int showip) | |
965 | { | |
966 | static char nbuf[HOSTLEN * 2 + USERLEN + 5]; | |
967 | ||
968 | if(target_p == NULL) | |
969 | return NULL; | |
970 | ||
971 | if(!MyConnect(target_p) || !irccmp(target_p->name, target_p->host)) | |
972 | return target_p->name; | |
973 | ||
974 | #ifdef HIDE_SERVERS_IPS | |
975 | if(EmptyString(target_p->name)) | |
976 | { | |
38e6acdd | 977 | rb_snprintf(nbuf, sizeof(nbuf), "[%s@255.255.255.255]", |
212380e3 | 978 | target_p->username); |
979 | return nbuf; | |
980 | } | |
981 | else | |
982 | return target_p->name; | |
983 | #endif | |
984 | ||
985 | switch (showip) | |
986 | { | |
987 | case SHOW_IP: | |
38e6acdd | 988 | rb_snprintf(nbuf, sizeof(nbuf), "%s[%s@%s]", |
212380e3 | 989 | target_p->name, target_p->username, |
990 | target_p->sockhost); | |
991 | break; | |
992 | ||
993 | case MASK_IP: | |
38e6acdd | 994 | rb_snprintf(nbuf, sizeof(nbuf), "%s[%s@255.255.255.255]", |
212380e3 | 995 | target_p->name, target_p->username); |
996 | ||
997 | default: | |
38e6acdd | 998 | rb_snprintf(nbuf, sizeof(nbuf), "%s[%s@%s]", |
212380e3 | 999 | target_p->name, target_p->username, |
1000 | target_p->host); | |
1001 | } | |
1002 | ||
1003 | return nbuf; | |
1004 | } | |
1005 | ||
1006 | /* log_client_name() | |
1007 | * | |
1008 | * This version is the same as get_client_name, but doesnt contain the | |
1009 | * code that will hide IPs always. This should be used for logfiles. | |
1010 | */ | |
1011 | const char * | |
1012 | log_client_name(struct Client *target_p, int showip) | |
1013 | { | |
1014 | static char nbuf[HOSTLEN * 2 + USERLEN + 5]; | |
1015 | ||
1016 | if(target_p == NULL) | |
1017 | return NULL; | |
1018 | ||
1019 | if(MyConnect(target_p)) | |
1020 | { | |
1021 | if(irccmp(target_p->name, target_p->host) == 0) | |
1022 | return target_p->name; | |
1023 | ||
1024 | switch (showip) | |
1025 | { | |
1026 | case SHOW_IP: | |
38e6acdd | 1027 | rb_snprintf(nbuf, sizeof(nbuf), "%s[%s@%s]", target_p->name, |
212380e3 | 1028 | target_p->username, target_p->sockhost); |
1029 | break; | |
1030 | ||
1031 | case MASK_IP: | |
38e6acdd | 1032 | rb_snprintf(nbuf, sizeof(nbuf), "%s[%s@255.255.255.255]", |
212380e3 | 1033 | target_p->name, target_p->username); |
1034 | ||
1035 | default: | |
38e6acdd | 1036 | rb_snprintf(nbuf, sizeof(nbuf), "%s[%s@%s]", target_p->name, |
212380e3 | 1037 | target_p->username, target_p->host); |
1038 | } | |
1039 | ||
1040 | return nbuf; | |
1041 | } | |
1042 | ||
1043 | return target_p->name; | |
1044 | } | |
1045 | ||
1046 | /* is_remote_connect - Returns whether a server was /connect'ed by a remote | |
1047 | * oper (send notices netwide) */ | |
1048 | int | |
1049 | is_remote_connect(struct Client *client_p) | |
1050 | { | |
1051 | struct Client *oper; | |
1052 | ||
1053 | if (client_p->serv == NULL) | |
1054 | return FALSE; | |
1055 | oper = find_named_person(client_p->serv->by); | |
1056 | return oper != NULL && IsOper(oper) && !MyConnect(oper); | |
1057 | } | |
1058 | ||
1059 | static void | |
1060 | free_exited_clients(void *unused) | |
1061 | { | |
af81d5a0 | 1062 | rb_dlink_node *ptr, *next; |
212380e3 | 1063 | struct Client *target_p; |
1064 | ||
8e69bb4e | 1065 | RB_DLINK_FOREACH_SAFE(ptr, next, dead_list.head) |
212380e3 | 1066 | { |
1067 | target_p = ptr->data; | |
1068 | ||
1069 | #ifdef DEBUG_EXITED_CLIENTS | |
1070 | { | |
1071 | struct abort_client *abt; | |
af81d5a0 | 1072 | rb_dlink_node *aptr; |
212380e3 | 1073 | int found = 0; |
1074 | ||
8e69bb4e | 1075 | RB_DLINK_FOREACH(aptr, abort_list.head) |
212380e3 | 1076 | { |
1077 | abt = aptr->data; | |
1078 | if(abt->client == target_p) | |
1079 | { | |
1080 | s_assert(0); | |
1081 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
1082 | "On abort_list: %s stat: %u flags: %u/%u handler: %c", | |
1083 | target_p->name, (unsigned int) target_p->status, | |
1084 | target_p->flags, target_p->flags2, target_p->handler); | |
1085 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
f80a1823 | 1086 | "Please report this to the charybdis developers!"); |
212380e3 | 1087 | found++; |
1088 | } | |
1089 | } | |
1090 | ||
1091 | if(found) | |
1092 | { | |
af81d5a0 | 1093 | rb_dlinkDestroy(ptr, &dead_list); |
212380e3 | 1094 | continue; |
1095 | } | |
1096 | } | |
1097 | #endif | |
1098 | ||
1099 | if(ptr->data == NULL) | |
1100 | { | |
1101 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
1102 | "Warning: null client on dead_list!"); | |
af81d5a0 | 1103 | rb_dlinkDestroy(ptr, &dead_list); |
212380e3 | 1104 | continue; |
1105 | } | |
1106 | release_client_state(target_p); | |
1107 | free_client(target_p); | |
af81d5a0 | 1108 | rb_dlinkDestroy(ptr, &dead_list); |
212380e3 | 1109 | } |
1110 | ||
1111 | #ifdef DEBUG_EXITED_CLIENTS | |
8e69bb4e | 1112 | RB_DLINK_FOREACH_SAFE(ptr, next, dead_remote_list.head) |
212380e3 | 1113 | { |
1114 | target_p = ptr->data; | |
1115 | ||
1116 | if(ptr->data == NULL) | |
1117 | { | |
1118 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
1119 | "Warning: null client on dead_list!"); | |
af81d5a0 | 1120 | rb_dlinkDestroy(ptr, &dead_list); |
212380e3 | 1121 | continue; |
1122 | } | |
1123 | release_client_state(target_p); | |
1124 | free_client(target_p); | |
af81d5a0 | 1125 | rb_dlinkDestroy(ptr, &dead_remote_list); |
212380e3 | 1126 | } |
1127 | #endif | |
1128 | ||
1129 | } | |
1130 | ||
1131 | /* | |
1132 | ** Recursively send QUITs and SQUITs for source_p and all its dependent clients | |
1133 | ** and servers to those servers that need them. A server needs the client | |
1134 | ** QUITs if it can't figure them out from the SQUIT (ie pre-TS4) or if it | |
1135 | ** isn't getting the SQUIT because of @#(*&@)# hostmasking. With TS4, once | |
1136 | ** a link gets a SQUIT, it doesn't need any QUIT/SQUITs for clients depending | |
1137 | ** on that one -orabidoo | |
1138 | */ | |
1139 | static void | |
1140 | recurse_send_quits(struct Client *client_p, struct Client *source_p, | |
1141 | struct Client *to, const char *comment1, | |
1142 | const char *comment) | |
1143 | { | |
1144 | struct Client *target_p; | |
af81d5a0 | 1145 | rb_dlink_node *ptr, *ptr_next; |
212380e3 | 1146 | /* If this server can handle quit storm (QS) removal |
1147 | * of dependents, just send the SQUIT | |
1148 | */ | |
1149 | ||
1150 | if(IsCapable(to, CAP_QS)) | |
1151 | { | |
1152 | sendto_one(to, "SQUIT %s :%s", | |
1153 | get_id(source_p, to), comment); | |
1154 | } | |
1155 | else | |
1156 | { | |
8e69bb4e | 1157 | RB_DLINK_FOREACH_SAFE(ptr, ptr_next, source_p->serv->users.head) |
212380e3 | 1158 | { |
1159 | target_p = ptr->data; | |
1160 | sendto_one(to, ":%s QUIT :%s", target_p->name, comment1); | |
1161 | } | |
8e69bb4e | 1162 | RB_DLINK_FOREACH_SAFE(ptr, ptr_next, source_p->serv->servers.head) |
212380e3 | 1163 | { |
1164 | target_p = ptr->data; | |
1165 | recurse_send_quits(client_p, target_p, to, comment1, comment); | |
1166 | } | |
1167 | sendto_one(to, "SQUIT %s :%s", source_p->name, comment); | |
1168 | } | |
1169 | } | |
1170 | ||
1171 | /* | |
1172 | ** Remove all clients that depend on source_p; assumes all (S)QUITs have | |
1173 | ** already been sent. we make sure to exit a server's dependent clients | |
1174 | ** and servers before the server itself; exit_one_client takes care of | |
1175 | ** actually removing things off llists. tweaked from +CSr31 -orabidoo | |
1176 | */ | |
1177 | /* | |
1178 | * added sanity test code.... source_p->serv might be NULL... | |
1179 | */ | |
1180 | static void | |
1181 | recurse_remove_clients(struct Client *source_p, const char *comment) | |
1182 | { | |
1183 | struct Client *target_p; | |
af81d5a0 | 1184 | rb_dlink_node *ptr, *ptr_next; |
212380e3 | 1185 | |
1186 | if(IsMe(source_p)) | |
1187 | return; | |
1188 | ||
1189 | if(source_p->serv == NULL) /* oooops. uh this is actually a major bug */ | |
1190 | return; | |
1191 | ||
1192 | /* this is very ugly, but it saves cpu :P */ | |
1193 | if(ConfigFileEntry.nick_delay > 0) | |
1194 | { | |
8e69bb4e | 1195 | RB_DLINK_FOREACH_SAFE(ptr, ptr_next, source_p->serv->users.head) |
212380e3 | 1196 | { |
1197 | target_p = ptr->data; | |
1198 | target_p->flags |= FLAGS_KILLED; | |
1199 | add_nd_entry(target_p->name); | |
1200 | ||
1201 | if(!IsDead(target_p) && !IsClosing(target_p)) | |
1202 | exit_remote_client(NULL, target_p, &me, comment); | |
1203 | } | |
1204 | } | |
1205 | else | |
1206 | { | |
8e69bb4e | 1207 | RB_DLINK_FOREACH_SAFE(ptr, ptr_next, source_p->serv->users.head) |
212380e3 | 1208 | { |
1209 | target_p = ptr->data; | |
1210 | target_p->flags |= FLAGS_KILLED; | |
1211 | ||
1212 | if(!IsDead(target_p) && !IsClosing(target_p)) | |
1213 | exit_remote_client(NULL, target_p, &me, comment); | |
1214 | } | |
1215 | } | |
1216 | ||
8e69bb4e | 1217 | RB_DLINK_FOREACH_SAFE(ptr, ptr_next, source_p->serv->servers.head) |
212380e3 | 1218 | { |
1219 | target_p = ptr->data; | |
1220 | recurse_remove_clients(target_p, comment); | |
1221 | qs_server(NULL, target_p, &me, comment); | |
1222 | } | |
1223 | } | |
1224 | ||
1225 | /* | |
1226 | ** Remove *everything* that depends on source_p, from all lists, and sending | |
1227 | ** all necessary QUITs and SQUITs. source_p itself is still on the lists, | |
1228 | ** and its SQUITs have been sent except for the upstream one -orabidoo | |
1229 | */ | |
1230 | static void | |
1231 | remove_dependents(struct Client *client_p, | |
1232 | struct Client *source_p, | |
1233 | struct Client *from, const char *comment, const char *comment1) | |
1234 | { | |
1235 | struct Client *to; | |
af81d5a0 | 1236 | rb_dlink_node *ptr, *next; |
212380e3 | 1237 | |
8e69bb4e | 1238 | RB_DLINK_FOREACH_SAFE(ptr, next, serv_list.head) |
212380e3 | 1239 | { |
1240 | to = ptr->data; | |
1241 | ||
1242 | if(IsMe(to) || to == source_p->from || | |
1243 | (to == client_p && IsCapable(to, CAP_QS))) | |
1244 | continue; | |
1245 | ||
1246 | recurse_send_quits(client_p, source_p, to, comment1, comment); | |
1247 | } | |
1248 | ||
1249 | recurse_remove_clients(source_p, comment1); | |
1250 | } | |
1251 | ||
1252 | void | |
1253 | exit_aborted_clients(void *unused) | |
1254 | { | |
1255 | struct abort_client *abt; | |
af81d5a0 | 1256 | rb_dlink_node *ptr, *next; |
8e69bb4e | 1257 | RB_DLINK_FOREACH_SAFE(ptr, next, abort_list.head) |
212380e3 | 1258 | { |
1259 | abt = ptr->data; | |
1260 | ||
1261 | #ifdef DEBUG_EXITED_CLIENTS | |
1262 | { | |
af81d5a0 | 1263 | if(rb_dlinkFind(abt->client, &dead_list)) |
212380e3 | 1264 | { |
1265 | s_assert(0); | |
1266 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
1267 | "On dead_list: %s stat: %u flags: %u/%u handler: %c", | |
1268 | abt->client->name, (unsigned int) abt->client->status, | |
1269 | abt->client->flags, abt->client->flags2, abt->client->handler); | |
1270 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
f80a1823 | 1271 | "Please report this to the charybdis developers!"); |
212380e3 | 1272 | continue; |
1273 | } | |
1274 | } | |
1275 | #endif | |
1276 | ||
1277 | s_assert(*((unsigned long*)abt->client) != 0xdeadbeef); /* This is lame but its a debug thing */ | |
af81d5a0 | 1278 | rb_dlinkDelete(ptr, &abort_list); |
212380e3 | 1279 | |
1280 | if(IsAnyServer(abt->client)) | |
1281 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
1282 | "Closing link to %s: %s", | |
1283 | get_server_name(abt->client, HIDE_IP), abt->notice); | |
1284 | ||
1285 | /* its no longer on abort list - we *must* remove | |
1286 | * FLAGS_CLOSING otherwise exit_client() will not run --fl | |
1287 | */ | |
1288 | abt->client->flags &= ~FLAGS_CLOSING; | |
1289 | exit_client(abt->client, abt->client, &me, abt->notice); | |
90a3c35b | 1290 | rb_free(abt); |
212380e3 | 1291 | } |
1292 | } | |
1293 | ||
1294 | ||
1295 | /* | |
1296 | * dead_link - Adds client to a list of clients that need an exit_client() | |
1297 | * | |
1298 | */ | |
1299 | void | |
1300 | dead_link(struct Client *client_p) | |
1301 | { | |
1302 | struct abort_client *abt; | |
1303 | ||
1304 | s_assert(!IsMe(client_p)); | |
1305 | if(IsDead(client_p) || IsClosing(client_p) || IsMe(client_p)) | |
1306 | return; | |
1307 | ||
8e43b0b4 | 1308 | abt = (struct abort_client *) rb_malloc(sizeof(struct abort_client)); |
212380e3 | 1309 | |
1310 | if(client_p->flags & FLAGS_SENDQEX) | |
1311 | strlcpy(abt->notice, "Max SendQ exceeded", sizeof(abt->notice)); | |
1312 | else | |
38e6acdd | 1313 | rb_snprintf(abt->notice, sizeof(abt->notice), "Write error: %s", strerror(errno)); |
212380e3 | 1314 | |
1315 | abt->client = client_p; | |
1316 | SetIOError(client_p); | |
1317 | SetDead(client_p); | |
1318 | SetClosing(client_p); | |
af81d5a0 | 1319 | rb_dlinkAdd(abt, &abt->node, &abort_list); |
212380e3 | 1320 | } |
1321 | ||
1322 | ||
1323 | /* This does the remove of the user from channels..local or remote */ | |
1324 | static inline void | |
1325 | exit_generic_client(struct Client *client_p, struct Client *source_p, struct Client *from, | |
1326 | const char *comment) | |
1327 | { | |
90a3c35b | 1328 | rb_dlink_node *ptr, *next_ptr; |
212380e3 | 1329 | |
1330 | if(IsOper(source_p)) | |
af81d5a0 | 1331 | rb_dlinkFindDestroy(source_p, &oper_list); |
212380e3 | 1332 | |
1333 | sendto_common_channels_local(source_p, ":%s!%s@%s QUIT :%s", | |
1334 | source_p->name, | |
1335 | source_p->username, source_p->host, comment); | |
1336 | ||
1337 | remove_user_from_channels(source_p); | |
1338 | ||
1339 | /* Should not be in any channels now */ | |
1340 | s_assert(source_p->user->channel.head == NULL); | |
1341 | ||
1342 | /* Clean up invitefield */ | |
90a3c35b | 1343 | RB_DLINK_FOREACH_SAFE(ptr, next_ptr, source_p->user->invited.head) |
212380e3 | 1344 | { |
1345 | del_invite(ptr->data, source_p); | |
1346 | } | |
1347 | ||
1348 | /* Clean up allow lists */ | |
1349 | del_all_accepts(source_p); | |
1350 | ||
1351 | add_history(source_p, 0); | |
1352 | off_history(source_p); | |
1353 | ||
1354 | monitor_signoff(source_p); | |
1355 | ||
1356 | if(has_id(source_p)) | |
1357 | del_from_id_hash(source_p->id, source_p); | |
1358 | ||
1359 | del_from_hostname_hash(source_p->orighost, source_p); | |
1360 | del_from_client_hash(source_p->name, source_p); | |
1361 | remove_client_from_list(source_p); | |
1362 | } | |
1363 | ||
1364 | /* | |
1365 | * Assumes IsPerson(source_p) && !MyConnect(source_p) | |
1366 | */ | |
1367 | ||
1368 | static int | |
1369 | exit_remote_client(struct Client *client_p, struct Client *source_p, struct Client *from, | |
1370 | const char *comment) | |
1371 | { | |
1372 | exit_generic_client(client_p, source_p, from, comment); | |
1373 | ||
1374 | if(source_p->servptr && source_p->servptr->serv) | |
1375 | { | |
af81d5a0 | 1376 | rb_dlinkDelete(&source_p->lnode, &source_p->servptr->serv->users); |
212380e3 | 1377 | } |
1378 | ||
1379 | if((source_p->flags & FLAGS_KILLED) == 0) | |
1380 | { | |
1381 | sendto_server(client_p, NULL, CAP_TS6, NOCAPS, | |
1382 | ":%s QUIT :%s", use_id(source_p), comment); | |
1383 | sendto_server(client_p, NULL, NOCAPS, CAP_TS6, | |
1384 | ":%s QUIT :%s", source_p->name, comment); | |
1385 | } | |
1386 | ||
1387 | SetDead(source_p); | |
1388 | #ifdef DEBUG_EXITED_CLIENTS | |
af81d5a0 | 1389 | rb_dlinkAddAlloc(source_p, &dead_remote_list); |
212380e3 | 1390 | #else |
af81d5a0 | 1391 | rb_dlinkAddAlloc(source_p, &dead_list); |
212380e3 | 1392 | #endif |
1393 | return(CLIENT_EXITED); | |
1394 | } | |
1395 | ||
1396 | /* | |
1397 | * This assumes IsUnknown(source_p) == TRUE and MyConnect(source_p) == TRUE | |
1398 | */ | |
1399 | ||
1400 | static int | |
1401 | exit_unknown_client(struct Client *client_p, struct Client *source_p, struct Client *from, | |
1402 | const char *comment) | |
1403 | { | |
1404 | delete_auth_queries(source_p); | |
21c9d815 | 1405 | del_unknown_ip(source_p); |
af81d5a0 | 1406 | rb_dlinkDelete(&source_p->localClient->tnode, &unknown_list); |
212380e3 | 1407 | |
1408 | if(!IsIOError(source_p)) | |
dd12a19c | 1409 | sendto_one(source_p, "ERROR :Closing Link: %s (%s)", |
1410 | source_p->user != NULL ? source_p->host : "127.0.0.1", | |
1411 | comment); | |
212380e3 | 1412 | |
1413 | close_connection(source_p); | |
1414 | ||
1415 | if(has_id(source_p)) | |
1416 | del_from_id_hash(source_p->id, source_p); | |
1417 | ||
1418 | del_from_hostname_hash(source_p->host, source_p); | |
1419 | del_from_client_hash(source_p->name, source_p); | |
1420 | remove_client_from_list(source_p); | |
212380e3 | 1421 | SetDead(source_p); |
af81d5a0 | 1422 | rb_dlinkAddAlloc(source_p, &dead_list); |
212380e3 | 1423 | |
1424 | /* Note that we don't need to add unknowns to the dead_list */ | |
1425 | return(CLIENT_EXITED); | |
1426 | } | |
1427 | ||
1428 | static int | |
1429 | exit_remote_server(struct Client *client_p, struct Client *source_p, struct Client *from, | |
1430 | const char *comment) | |
1431 | { | |
1432 | static char comment1[(HOSTLEN*2)+2]; | |
1433 | static char newcomment[BUFSIZE]; | |
1434 | struct Client *target_p; | |
1435 | ||
1436 | if(ConfigServerHide.flatten_links) | |
1437 | strcpy(comment1, "*.net *.split"); | |
1438 | else | |
1439 | { | |
66c8fdd2 | 1440 | strcpy(comment1, source_p->servptr->name); |
212380e3 | 1441 | strcat(comment1, " "); |
1442 | strcat(comment1, source_p->name); | |
1443 | } | |
1444 | if (IsPerson(from)) | |
38e6acdd | 1445 | rb_snprintf(newcomment, sizeof(newcomment), "by %s: %s", |
212380e3 | 1446 | from->name, comment); |
1447 | ||
1448 | if(source_p->serv != NULL) | |
1449 | remove_dependents(client_p, source_p, from, IsPerson(from) ? newcomment : comment, comment1); | |
1450 | ||
1451 | if(source_p->servptr && source_p->servptr->serv) | |
af81d5a0 | 1452 | rb_dlinkDelete(&source_p->lnode, &source_p->servptr->serv->servers); |
212380e3 | 1453 | else |
1454 | s_assert(0); | |
1455 | ||
af81d5a0 | 1456 | rb_dlinkFindDestroy(source_p, &global_serv_list); |
212380e3 | 1457 | target_p = source_p->from; |
1458 | ||
1459 | if(target_p != NULL && IsServer(target_p) && target_p != client_p && | |
1460 | !IsMe(target_p) && (source_p->flags & FLAGS_KILLED) == 0) | |
1461 | { | |
1462 | sendto_one(target_p, ":%s SQUIT %s :%s", | |
1463 | get_id(from, target_p), get_id(source_p, target_p), | |
1464 | comment); | |
1465 | } | |
1466 | ||
1467 | if(has_id(source_p)) | |
1468 | del_from_id_hash(source_p->id, source_p); | |
1469 | ||
1470 | del_from_client_hash(source_p->name, source_p); | |
1471 | remove_client_from_list(source_p); | |
994544c2 | 1472 | scache_split(source_p->serv->nameinfo); |
212380e3 | 1473 | |
1474 | SetDead(source_p); | |
1475 | #ifdef DEBUG_EXITED_CLIENTS | |
af81d5a0 | 1476 | rb_dlinkAddAlloc(source_p, &dead_remote_list); |
212380e3 | 1477 | #else |
af81d5a0 | 1478 | rb_dlinkAddAlloc(source_p, &dead_list); |
212380e3 | 1479 | #endif |
1480 | return 0; | |
1481 | } | |
1482 | ||
1483 | static int | |
1484 | qs_server(struct Client *client_p, struct Client *source_p, struct Client *from, | |
1485 | const char *comment) | |
1486 | { | |
1487 | struct Client *target_p; | |
1488 | ||
1489 | if(source_p->servptr && source_p->servptr->serv) | |
af81d5a0 | 1490 | rb_dlinkDelete(&source_p->lnode, &source_p->servptr->serv->servers); |
212380e3 | 1491 | else |
1492 | s_assert(0); | |
1493 | ||
af81d5a0 | 1494 | rb_dlinkFindDestroy(source_p, &global_serv_list); |
212380e3 | 1495 | target_p = source_p->from; |
1496 | ||
1497 | if(has_id(source_p)) | |
1498 | del_from_id_hash(source_p->id, source_p); | |
1499 | ||
1500 | del_from_client_hash(source_p->name, source_p); | |
1501 | remove_client_from_list(source_p); | |
4f5ec033 | 1502 | scache_split(source_p->serv->nameinfo); |
212380e3 | 1503 | |
1504 | SetDead(source_p); | |
af81d5a0 | 1505 | rb_dlinkAddAlloc(source_p, &dead_list); |
212380e3 | 1506 | return 0; |
1507 | } | |
1508 | ||
1509 | static int | |
1510 | exit_local_server(struct Client *client_p, struct Client *source_p, struct Client *from, | |
1511 | const char *comment) | |
1512 | { | |
1513 | static char comment1[(HOSTLEN*2)+2]; | |
1514 | static char newcomment[BUFSIZE]; | |
1515 | unsigned int sendk, recvk; | |
1516 | ||
af81d5a0 WP |
1517 | rb_dlinkDelete(&source_p->localClient->tnode, &serv_list); |
1518 | rb_dlinkFindDestroy(source_p, &global_serv_list); | |
212380e3 | 1519 | |
1520 | unset_chcap_usage_counts(source_p); | |
1521 | sendk = source_p->localClient->sendK; | |
1522 | recvk = source_p->localClient->receiveK; | |
1523 | ||
1524 | /* Always show source here, so the server notices show | |
1525 | * which side initiated the split -- jilles | |
1526 | */ | |
38e6acdd | 1527 | rb_snprintf(newcomment, sizeof(newcomment), "by %s: %s", |
212380e3 | 1528 | from == source_p ? me.name : from->name, comment); |
1529 | if (!IsIOError(source_p)) | |
1530 | sendto_one(source_p, "SQUIT %s :%s", use_id(source_p), | |
1531 | newcomment); | |
1532 | if(client_p != NULL && source_p != client_p && !IsIOError(source_p)) | |
1533 | { | |
1534 | sendto_one(source_p, "ERROR :Closing Link: 127.0.0.1 %s (%s)", | |
1535 | source_p->name, comment); | |
1536 | } | |
1537 | ||
212380e3 | 1538 | if(source_p->servptr && source_p->servptr->serv) |
af81d5a0 | 1539 | rb_dlinkDelete(&source_p->lnode, &source_p->servptr->serv->servers); |
212380e3 | 1540 | else |
1541 | s_assert(0); | |
1542 | ||
1543 | ||
1544 | close_connection(source_p); | |
1545 | ||
1546 | if(ConfigServerHide.flatten_links) | |
1547 | strcpy(comment1, "*.net *.split"); | |
1548 | else | |
1549 | { | |
66c8fdd2 | 1550 | strcpy(comment1, source_p->servptr->name); |
212380e3 | 1551 | strcat(comment1, " "); |
1552 | strcat(comment1, source_p->name); | |
1553 | } | |
1554 | ||
1555 | if(source_p->serv != NULL) | |
1556 | remove_dependents(client_p, source_p, from, IsPerson(from) ? newcomment : comment, comment1); | |
1557 | ||
1558 | sendto_realops_snomask(SNO_GENERAL, L_ALL, "%s was connected" | |
1559 | " for %ld seconds. %d/%d sendK/recvK.", | |
784fdac0 | 1560 | source_p->name, (long) rb_current_time() - source_p->localClient->firsttime, sendk, recvk); |
212380e3 | 1561 | |
1562 | ilog(L_SERVER, "%s was connected for %ld seconds. %d/%d sendK/recvK.", | |
784fdac0 | 1563 | source_p->name, (long) rb_current_time() - source_p->localClient->firsttime, sendk, recvk); |
212380e3 | 1564 | |
1565 | if(has_id(source_p)) | |
1566 | del_from_id_hash(source_p->id, source_p); | |
1567 | ||
1568 | del_from_client_hash(source_p->name, source_p); | |
1569 | remove_client_from_list(source_p); | |
994544c2 | 1570 | scache_split(source_p->serv->nameinfo); |
212380e3 | 1571 | |
1572 | SetDead(source_p); | |
af81d5a0 | 1573 | rb_dlinkAddAlloc(source_p, &dead_list); |
212380e3 | 1574 | return 0; |
1575 | } | |
1576 | ||
1577 | ||
1578 | /* | |
1579 | * This assumes IsPerson(source_p) == TRUE && MyConnect(source_p) == TRUE | |
1580 | */ | |
1581 | ||
1582 | static int | |
1583 | exit_local_client(struct Client *client_p, struct Client *source_p, struct Client *from, | |
1584 | const char *comment) | |
1585 | { | |
1586 | unsigned long on_for; | |
1587 | ||
1588 | exit_generic_client(client_p, source_p, from, comment); | |
1589 | clear_monitor(source_p); | |
1590 | ||
1591 | s_assert(IsPerson(source_p)); | |
af81d5a0 WP |
1592 | rb_dlinkDelete(&source_p->localClient->tnode, &lclient_list); |
1593 | rb_dlinkDelete(&source_p->lnode, &me.serv->users); | |
212380e3 | 1594 | |
1595 | if(IsOper(source_p)) | |
af81d5a0 | 1596 | rb_dlinkFindDestroy(source_p, &local_oper_list); |
212380e3 | 1597 | |
1598 | sendto_realops_snomask(SNO_CCONN, L_ALL, | |
1599 | "Client exiting: %s (%s@%s) [%s] [%s]", | |
1600 | source_p->name, | |
1601 | source_p->username, source_p->host, comment, | |
1602 | show_ip(NULL, source_p) ? source_p->sockhost : "255.255.255.255"); | |
1603 | ||
1604 | sendto_realops_snomask(SNO_CCONNEXT, L_ALL, | |
1605 | "CLIEXIT %s %s %s %s 0 %s", | |
1606 | source_p->name, source_p->username, source_p->host, | |
1607 | show_ip(NULL, source_p) ? source_p->sockhost : "255.255.255.255", | |
1608 | comment); | |
1609 | ||
9f6bbe3c | 1610 | on_for = rb_current_time() - source_p->localClient->firsttime; |
212380e3 | 1611 | |
1612 | ilog(L_USER, "%s (%3lu:%02lu:%02lu): %s!%s@%s %d/%d", | |
9f6bbe3c | 1613 | myctime(rb_current_time()), on_for / 3600, |
212380e3 | 1614 | (on_for % 3600) / 60, on_for % 60, |
1615 | source_p->name, source_p->username, source_p->host, | |
1616 | source_p->localClient->sendK, source_p->localClient->receiveK); | |
1617 | ||
1618 | sendto_one(source_p, "ERROR :Closing Link: %s (%s)", source_p->host, comment); | |
1619 | close_connection(source_p); | |
1620 | ||
1621 | if((source_p->flags & FLAGS_KILLED) == 0) | |
1622 | { | |
1623 | sendto_server(client_p, NULL, CAP_TS6, NOCAPS, | |
1624 | ":%s QUIT :%s", use_id(source_p), comment); | |
1625 | sendto_server(client_p, NULL, NOCAPS, CAP_TS6, | |
1626 | ":%s QUIT :%s", source_p->name, comment); | |
1627 | } | |
1628 | ||
1629 | SetDead(source_p); | |
af81d5a0 | 1630 | rb_dlinkAddAlloc(source_p, &dead_list); |
212380e3 | 1631 | return(CLIENT_EXITED); |
1632 | } | |
1633 | ||
1634 | ||
1635 | /* | |
1636 | ** exit_client - This is old "m_bye". Name changed, because this is not a | |
1637 | ** protocol function, but a general server utility function. | |
1638 | ** | |
1639 | ** This function exits a client of *any* type (user, server, etc) | |
1640 | ** from this server. Also, this generates all necessary prototol | |
1641 | ** messages that this exit may cause. | |
1642 | ** | |
1643 | ** 1) If the client is a local client, then this implicitly | |
1644 | ** exits all other clients depending on this connection (e.g. | |
1645 | ** remote clients having 'from'-field that points to this. | |
1646 | ** | |
1647 | ** 2) If the client is a remote client, then only this is exited. | |
1648 | ** | |
1649 | ** For convenience, this function returns a suitable value for | |
1650 | ** m_function return value: | |
1651 | ** | |
1652 | ** CLIENT_EXITED if (client_p == source_p) | |
1653 | ** 0 if (client_p != source_p) | |
1654 | */ | |
1655 | int | |
1656 | exit_client(struct Client *client_p, /* The local client originating the | |
1657 | * exit or NULL, if this exit is | |
1658 | * generated by this server for | |
1659 | * internal reasons. | |
1660 | * This will not get any of the | |
1661 | * generated messages. */ | |
1662 | struct Client *source_p, /* Client exiting */ | |
1663 | struct Client *from, /* Client firing off this Exit, | |
1664 | * never NULL! */ | |
1665 | const char *comment /* Reason for the exit */ | |
1666 | ) | |
1667 | { | |
1668 | hook_data_client_exit hdata; | |
1669 | if(IsClosing(source_p)) | |
1670 | return -1; | |
1671 | ||
1672 | /* note, this HAS to be here, when we exit a client we attempt to | |
1673 | * send them data, if this generates a write error we must *not* add | |
1674 | * them to the abort list --fl | |
1675 | */ | |
1676 | SetClosing(source_p); | |
1677 | ||
1678 | hdata.local_link = client_p; | |
1679 | hdata.target = source_p; | |
1680 | hdata.from = from; | |
1681 | hdata.comment = comment; | |
1682 | call_hook(h_client_exit, &hdata); | |
1683 | ||
1684 | if(MyConnect(source_p)) | |
1685 | { | |
1686 | /* Local clients of various types */ | |
1687 | if(IsPerson(source_p)) | |
1688 | return exit_local_client(client_p, source_p, from, comment); | |
1689 | else if(IsServer(source_p)) | |
1690 | return exit_local_server(client_p, source_p, from, comment); | |
1691 | /* IsUnknown || IsConnecting || IsHandShake */ | |
1692 | else if(!IsReject(source_p)) | |
1693 | return exit_unknown_client(client_p, source_p, from, comment); | |
1694 | } | |
1695 | else | |
1696 | { | |
1697 | /* Remotes */ | |
1698 | if(IsPerson(source_p)) | |
1699 | return exit_remote_client(client_p, source_p, from, comment); | |
1700 | else if(IsServer(source_p)) | |
1701 | return exit_remote_server(client_p, source_p, from, comment); | |
1702 | } | |
1703 | ||
1704 | return -1; | |
1705 | } | |
1706 | ||
1707 | /* | |
1708 | * Count up local client memory | |
1709 | */ | |
1710 | ||
1711 | /* XXX one common Client list now */ | |
1712 | void | |
1713 | count_local_client_memory(size_t * count, size_t * local_client_memory_used) | |
1714 | { | |
ae4091d2 JT |
1715 | size_t lusage; |
1716 | rb_bh_usage(lclient_heap, count, NULL, &lusage, NULL); | |
784fdac0 | 1717 | *local_client_memory_used = lusage + (*count * (sizeof(void *) + sizeof(struct Client))); |
212380e3 | 1718 | } |
1719 | ||
1720 | /* | |
1721 | * Count up remote client memory | |
1722 | */ | |
1723 | void | |
1724 | count_remote_client_memory(size_t * count, size_t * remote_client_memory_used) | |
1725 | { | |
ae4091d2 JT |
1726 | size_t lcount, rcount; |
1727 | rb_bh_usage(lclient_heap, &lcount, NULL, NULL, NULL); | |
1728 | rb_bh_usage(client_heap, &rcount, NULL, NULL, NULL); | |
1729 | *count = rcount - lcount; | |
784fdac0 | 1730 | *remote_client_memory_used = *count * (sizeof(void *) + sizeof(struct Client)); |
212380e3 | 1731 | } |
1732 | ||
1733 | ||
1734 | /* | |
1735 | * accept processing, this adds a form of "caller ID" to ircd | |
1736 | * | |
1737 | * If a client puts themselves into "caller ID only" mode, | |
1738 | * only clients that match a client pointer they have put on | |
1739 | * the accept list will be allowed to message them. | |
1740 | * | |
1741 | * [ source.on_allow_list ] -> [ target1 ] -> [ target2 ] | |
1742 | * | |
1743 | * [target.allow_list] -> [ source1 ] -> [source2 ] | |
1744 | * | |
1745 | * i.e. a target will have a link list of source pointers it will allow | |
1746 | * each source client then has a back pointer pointing back | |
1747 | * to the client that has it on its accept list. | |
1748 | * This allows for exit_one_client to remove these now bogus entries | |
1749 | * from any client having an accept on them. | |
1750 | */ | |
1751 | /* | |
1752 | * del_all_accepts | |
1753 | * | |
1754 | * inputs - pointer to exiting client | |
1755 | * output - NONE | |
1756 | * side effects - Walk through given clients allow_list and on_allow_list | |
1757 | * remove all references to this client | |
1758 | */ | |
1759 | void | |
1760 | del_all_accepts(struct Client *client_p) | |
1761 | { | |
af81d5a0 | 1762 | rb_dlink_node *ptr; |
90a3c35b | 1763 | rb_dlink_node *next_ptr; |
212380e3 | 1764 | struct Client *target_p; |
1765 | ||
1766 | if(MyClient(client_p) && client_p->localClient->allow_list.head) | |
1767 | { | |
1768 | /* clear this clients accept list, and remove them from | |
1769 | * everyones on_accept_list | |
1770 | */ | |
90a3c35b | 1771 | RB_DLINK_FOREACH_SAFE(ptr, next_ptr, client_p->localClient->allow_list.head) |
212380e3 | 1772 | { |
1773 | target_p = ptr->data; | |
af81d5a0 WP |
1774 | rb_dlinkFindDestroy(client_p, &target_p->on_allow_list); |
1775 | rb_dlinkDestroy(ptr, &client_p->localClient->allow_list); | |
212380e3 | 1776 | } |
1777 | } | |
1778 | ||
1779 | /* remove this client from everyones accept list */ | |
90a3c35b | 1780 | RB_DLINK_FOREACH_SAFE(ptr, next_ptr, client_p->on_allow_list.head) |
212380e3 | 1781 | { |
1782 | target_p = ptr->data; | |
af81d5a0 WP |
1783 | rb_dlinkFindDestroy(client_p, &target_p->localClient->allow_list); |
1784 | rb_dlinkDestroy(ptr, &client_p->on_allow_list); | |
212380e3 | 1785 | } |
1786 | } | |
1787 | ||
1788 | /* | |
1789 | * show_ip() - asks if the true IP shoudl be shown when source is | |
1790 | * askin for info about target | |
1791 | * | |
1792 | * Inputs - source_p who is asking | |
1793 | * - target_p who do we want the info on | |
1794 | * Output - returns 1 if clear IP can be showed, otherwise 0 | |
1795 | * Side Effects - none | |
1796 | */ | |
1797 | ||
1798 | int | |
1799 | show_ip(struct Client *source_p, struct Client *target_p) | |
1800 | { | |
1801 | if(IsAnyServer(target_p)) | |
1802 | { | |
1803 | #ifndef HIDE_SERVERS_IPS | |
1804 | if(source_p == NULL || IsOper(source_p)) | |
1805 | return 1; | |
1806 | #endif | |
1807 | return 0; | |
1808 | } | |
1809 | else if(IsIPSpoof(target_p)) | |
1810 | { | |
1811 | /* source == NULL indicates message is being sent | |
1812 | * to local opers. | |
1813 | */ | |
1814 | if(!ConfigFileEntry.hide_spoof_ips && | |
1815 | (source_p == NULL || MyOper(source_p))) | |
1816 | return 1; | |
1817 | return 0; | |
1818 | } | |
1819 | else if(IsDynSpoof(target_p) && (source_p != NULL && !IsOper(source_p))) | |
1820 | return 0; | |
1821 | else | |
1822 | return 1; | |
1823 | } | |
1824 | ||
1825 | int | |
1826 | show_ip_conf(struct ConfItem *aconf, struct Client *source_p) | |
1827 | { | |
1828 | if(IsConfDoSpoofIp(aconf)) | |
1829 | { | |
1830 | if(!ConfigFileEntry.hide_spoof_ips && MyOper(source_p)) | |
1831 | return 1; | |
1832 | ||
1833 | return 0; | |
1834 | } | |
1835 | else | |
1836 | return 1; | |
1837 | } | |
1838 | ||
1839 | /* | |
1840 | * initUser | |
1841 | * | |
1842 | * inputs - none | |
1843 | * outputs - none | |
1844 | * | |
1845 | * side effects - Creates a block heap for struct Users | |
1846 | * | |
1847 | */ | |
6e9b4415 | 1848 | static rb_bh *user_heap; |
212380e3 | 1849 | void |
1850 | initUser(void) | |
1851 | { | |
784fdac0 | 1852 | user_heap = rb_bh_create(sizeof(struct User), USER_HEAP_SIZE, "user_heap"); |
212380e3 | 1853 | if(!user_heap) |
784fdac0 | 1854 | rb_outofmemory(); |
212380e3 | 1855 | } |
1856 | ||
1857 | /* | |
1858 | * make_user | |
1859 | * | |
1860 | * inputs - pointer to client struct | |
1861 | * output - pointer to struct User | |
1862 | * side effects - add's an User information block to a client | |
1863 | * if it was not previously allocated. | |
1864 | */ | |
1865 | struct User * | |
1866 | make_user(struct Client *client_p) | |
1867 | { | |
1868 | struct User *user; | |
1869 | ||
1870 | user = client_p->user; | |
1871 | if(!user) | |
1872 | { | |
6e9b4415 | 1873 | user = (struct User *) rb_bh_alloc(user_heap); |
212380e3 | 1874 | user->refcnt = 1; |
1875 | client_p->user = user; | |
1876 | } | |
1877 | return user; | |
1878 | } | |
1879 | ||
1880 | /* | |
1881 | * make_server | |
1882 | * | |
1883 | * inputs - pointer to client struct | |
1884 | * output - pointer to server_t | |
1885 | * side effects - add's an Server information block to a client | |
1886 | * if it was not previously allocated. | |
1887 | */ | |
1888 | server_t * | |
1889 | make_server(struct Client *client_p) | |
1890 | { | |
1891 | server_t *serv = client_p->serv; | |
1892 | ||
1893 | if(!serv) | |
1894 | { | |
8e43b0b4 | 1895 | serv = (server_t *) rb_malloc(sizeof(server_t)); |
212380e3 | 1896 | client_p->serv = serv; |
1897 | } | |
1898 | return client_p->serv; | |
1899 | } | |
1900 | ||
1901 | /* | |
1902 | * free_user | |
1903 | * | |
1904 | * inputs - pointer to user struct | |
1905 | * - pointer to client struct | |
1906 | * output - none | |
1907 | * side effects - Decrease user reference count by one and release block, | |
1908 | * if count reaches 0 | |
1909 | */ | |
1910 | void | |
1911 | free_user(struct User *user, struct Client *client_p) | |
1912 | { | |
784fdac0 VY |
1913 | free_away(client_p); |
1914 | ||
212380e3 | 1915 | if(--user->refcnt <= 0) |
1916 | { | |
1917 | if(user->away) | |
90a3c35b | 1918 | rb_free((char *) user->away); |
212380e3 | 1919 | /* |
1920 | * sanity check | |
1921 | */ | |
1922 | if(user->refcnt < 0 || user->invited.head || user->channel.head) | |
1923 | { | |
1924 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
1925 | "* %#lx user (%s!%s@%s) %#lx %#lx %#lx %lu %d *", | |
1926 | (unsigned long) client_p, | |
1927 | client_p ? client_p-> | |
1928 | name : "<noname>", | |
1929 | client_p->username, | |
1930 | client_p->host, | |
1931 | (unsigned long) user, | |
1932 | (unsigned long) user->invited.head, | |
1933 | (unsigned long) user->channel.head, | |
af81d5a0 | 1934 | rb_dlink_list_length(&user->channel), |
212380e3 | 1935 | user->refcnt); |
1936 | s_assert(!user->refcnt); | |
1937 | s_assert(!user->invited.head); | |
1938 | s_assert(!user->channel.head); | |
1939 | } | |
1940 | ||
6e9b4415 | 1941 | rb_bh_free(user_heap, user); |
212380e3 | 1942 | } |
1943 | } | |
1944 | ||
784fdac0 VY |
1945 | void |
1946 | allocate_away(struct Client *client_p) | |
1947 | { | |
1948 | if(client_p->user->away == NULL) | |
1949 | client_p->user->away = rb_bh_alloc(away_heap); | |
1950 | } | |
1951 | ||
1952 | ||
1953 | void | |
1954 | free_away(struct Client *client_p) | |
1955 | { | |
72b8a371 | 1956 | if(client_p->user != NULL && client_p->user->away != NULL) { |
784fdac0 VY |
1957 | rb_bh_free(away_heap, client_p->user->away); |
1958 | client_p->user->away = NULL; | |
1959 | } | |
ece36b7b VY |
1960 | } |
1961 | ||
212380e3 | 1962 | void |
1963 | init_uid(void) | |
1964 | { | |
1965 | int i; | |
1966 | ||
1967 | for(i = 0; i < 3; i++) | |
1968 | current_uid[i] = me.id[i]; | |
1969 | ||
1970 | for(i = 3; i < 9; i++) | |
1971 | current_uid[i] = 'A'; | |
1972 | ||
1973 | current_uid[9] = '\0'; | |
1974 | } | |
1975 | ||
1976 | ||
1977 | char * | |
1978 | generate_uid(void) | |
1979 | { | |
1980 | int i; | |
1981 | ||
1982 | for(i = 8; i > 3; i--) | |
1983 | { | |
1984 | if(current_uid[i] == 'Z') | |
1985 | { | |
1986 | current_uid[i] = '0'; | |
1987 | return current_uid; | |
1988 | } | |
1989 | else if(current_uid[i] != '9') | |
1990 | { | |
1991 | current_uid[i]++; | |
1992 | return current_uid; | |
1993 | } | |
1994 | else | |
1995 | current_uid[i] = 'A'; | |
1996 | } | |
1997 | ||
1998 | /* if this next if() triggers, we're fucked. */ | |
1999 | if(current_uid[3] == 'Z') | |
2000 | { | |
2001 | current_uid[i] = 'A'; | |
2002 | s_assert(0); | |
2003 | } | |
2004 | else | |
2005 | current_uid[i]++; | |
2006 | ||
2007 | return current_uid; | |
2008 | } | |
2009 | ||
2010 | /* | |
2011 | * close_connection | |
2012 | * Close the physical connection. This function must make | |
2013 | * MyConnect(client_p) == FALSE, and set client_p->from == NULL. | |
2014 | */ | |
2015 | void | |
2016 | close_connection(struct Client *client_p) | |
2017 | { | |
2018 | s_assert(client_p != NULL); | |
2019 | if(client_p == NULL) | |
2020 | return; | |
2021 | ||
2022 | s_assert(MyConnect(client_p)); | |
2023 | if(!MyConnect(client_p)) | |
2024 | return; | |
2025 | ||
2026 | if(IsServer(client_p)) | |
2027 | { | |
2028 | struct server_conf *server_p; | |
2029 | ||
83251205 VY |
2030 | ServerStats.is_sv++; |
2031 | ServerStats.is_sbs += client_p->localClient->sendB; | |
2032 | ServerStats.is_sbr += client_p->localClient->receiveB; | |
2033 | ServerStats.is_sks += client_p->localClient->sendK; | |
2034 | ServerStats.is_skr += client_p->localClient->receiveK; | |
2035 | ServerStats.is_sti += rb_current_time() - client_p->localClient->firsttime; | |
2036 | if(ServerStats.is_sbs > 2047) | |
212380e3 | 2037 | { |
83251205 VY |
2038 | ServerStats.is_sks += (ServerStats.is_sbs >> 10); |
2039 | ServerStats.is_sbs &= 0x3ff; | |
212380e3 | 2040 | } |
83251205 | 2041 | if(ServerStats.is_sbr > 2047) |
212380e3 | 2042 | { |
83251205 VY |
2043 | ServerStats.is_skr += (ServerStats.is_sbr >> 10); |
2044 | ServerStats.is_sbr &= 0x3ff; | |
212380e3 | 2045 | } |
2046 | ||
2047 | /* | |
2048 | * If the connection has been up for a long amount of time, schedule | |
2049 | * a 'quick' reconnect, else reset the next-connect cycle. | |
2050 | */ | |
2051 | if((server_p = find_server_conf(client_p->name)) != NULL) | |
2052 | { | |
2053 | /* | |
2054 | * Reschedule a faster reconnect, if this was a automatically | |
2055 | * connected configuration entry. (Note that if we have had | |
2056 | * a rehash in between, the status has been changed to | |
2057 | * CONF_ILLEGAL). But only do this if it was a "good" link. | |
2058 | */ | |
2059 | server_p->hold = time(NULL); | |
2060 | server_p->hold += | |
2061 | (server_p->hold - client_p->localClient->lasttime > | |
2062 | HANGONGOODLINK) ? HANGONRETRYDELAY : ConFreq(server_p->class); | |
2063 | } | |
2064 | ||
2065 | } | |
2066 | else if(IsClient(client_p)) | |
2067 | { | |
83251205 VY |
2068 | ServerStats.is_cl++; |
2069 | ServerStats.is_cbs += client_p->localClient->sendB; | |
2070 | ServerStats.is_cbr += client_p->localClient->receiveB; | |
2071 | ServerStats.is_cks += client_p->localClient->sendK; | |
2072 | ServerStats.is_ckr += client_p->localClient->receiveK; | |
2073 | ServerStats.is_cti += rb_current_time() - client_p->localClient->firsttime; | |
2074 | if(ServerStats.is_cbs > 2047) | |
212380e3 | 2075 | { |
83251205 VY |
2076 | ServerStats.is_cks += (ServerStats.is_cbs >> 10); |
2077 | ServerStats.is_cbs &= 0x3ff; | |
212380e3 | 2078 | } |
83251205 | 2079 | if(ServerStats.is_cbr > 2047) |
212380e3 | 2080 | { |
83251205 VY |
2081 | ServerStats.is_ckr += (ServerStats.is_cbr >> 10); |
2082 | ServerStats.is_cbr &= 0x3ff; | |
212380e3 | 2083 | } |
2084 | } | |
2085 | else | |
83251205 | 2086 | ServerStats.is_ni++; |
21c9d815 VY |
2087 | |
2088 | if(client_p->localClient->F) | |
2089 | { | |
2090 | /* attempt to flush any pending dbufs. Evil, but .. -- adrian */ | |
2091 | if(!IsIOError(client_p)) | |
2092 | send_queued(client_p); | |
2093 | ||
2094 | rb_close(client_p->localClient->F); | |
2095 | client_p->localClient->F = NULL; | |
2096 | } | |
2097 | ||
83b667df JT |
2098 | if(client_p->localClient->ctrlF) |
2099 | { | |
2100 | rb_close(client_p->localClient->ctrlF); | |
2101 | client_p->localClient->ctrlF = NULL; | |
2102 | } | |
2103 | ||
527ec911 JT |
2104 | rb_linebuf_donebuf(&client_p->localClient->buf_sendq); |
2105 | rb_linebuf_donebuf(&client_p->localClient->buf_recvq); | |
212380e3 | 2106 | detach_conf(client_p); |
2107 | ||
2108 | /* XXX shouldnt really be done here. */ | |
2109 | detach_server_conf(client_p); | |
2110 | ||
2111 | client_p->from = NULL; /* ...this should catch them! >:) --msa */ | |
2112 | ClearMyConnect(client_p); | |
2113 | SetIOError(client_p); | |
2114 | } | |
2115 | ||
2116 | ||
2117 | ||
2118 | void | |
2119 | error_exit_client(struct Client *client_p, int error) | |
2120 | { | |
2121 | /* | |
2122 | * ...hmm, with non-blocking sockets we might get | |
2123 | * here from quite valid reasons, although.. why | |
2124 | * would select report "data available" when there | |
2125 | * wasn't... so, this must be an error anyway... --msa | |
2126 | * actually, EOF occurs when read() returns 0 and | |
2127 | * in due course, select() returns that fd as ready | |
2128 | * for reading even though it ends up being an EOF. -avalon | |
2129 | */ | |
2130 | char errmsg[255]; | |
527ec911 | 2131 | int current_error = rb_get_sockerr(client_p->localClient->F); |
212380e3 | 2132 | |
2133 | SetIOError(client_p); | |
2134 | ||
2135 | if(IsServer(client_p) || IsHandshake(client_p)) | |
2136 | { | |
212380e3 | 2137 | if(error == 0) |
2138 | { | |
2139 | sendto_realops_snomask(SNO_GENERAL, is_remote_connect(client_p) && !IsServer(client_p) ? L_NETWIDE : L_ALL, | |
2140 | "Server %s closed the connection", | |
2141 | get_server_name(client_p, SHOW_IP)); | |
2142 | ||
2143 | ilog(L_SERVER, "Server %s closed the connection", | |
2144 | log_client_name(client_p, SHOW_IP)); | |
2145 | } | |
2146 | else | |
2147 | { | |
2148 | sendto_realops_snomask(SNO_GENERAL, is_remote_connect(client_p) && !IsServer(client_p) ? L_NETWIDE : L_ALL, | |
2149 | "Lost connection to %s: %s", | |
2150 | client_p->name, strerror(current_error)); | |
2151 | ilog(L_SERVER, "Lost connection to %s: %s", | |
2152 | log_client_name(client_p, SHOW_IP), strerror(current_error)); | |
2153 | } | |
212380e3 | 2154 | } |
2155 | ||
2156 | if(error == 0) | |
2157 | strlcpy(errmsg, "Remote host closed the connection", sizeof(errmsg)); | |
2158 | else | |
38e6acdd | 2159 | rb_snprintf(errmsg, sizeof(errmsg), "Read error: %s", strerror(current_error)); |
212380e3 | 2160 | |
2161 | exit_client(client_p, client_p, &me, errmsg); | |
2162 | } |